Re: Help - Astro Physics 1200 - RA Tracking Issue


Not true, a 100 tooth pulley of a different pitch still has 100 teeth but a different diameter. The teeth maybe slightly wider increasing the diameter and changing the ratio. 

On Sat, 21 Nov 2020 at 15:57, Howard Dutton <hjd1964@...> wrote:
On Fri, Nov 20, 2020 at 04:51 PM, Mike Ahner wrote:
It's really not the number of teeth per se that matter, it's the diameter of the pulley.
I just can't see how this can possibly be true.

If the large pulley has 100T and the small one 20T it's exactly 5:1 and that's all there is to it.

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